Mountain Dew - Liquid Barn Liquid Barn $3.99 10ml - $3.99 30ml - $5.99 120ml - $18.99 250ml - $35.99 500ml - $69.99 Quantity This variant is currently sold out Please fill in the form below if you'd like to be notified when it becomes available. Flavor Description: A refreshing lemon-lime soda. Perfect for making carbonated fruit style drinks. Non-Flavoring Ingredients: Propylene Glycol Suggested Mix Percentage: 9% Specific Gravity: 0.92 g/ml